У вас тоже пакет libperl пустой?

# Copyright 1999-2010 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: /var/cvsroot/gentoo-x86/sys-devel/libperl/libperl-5.10.1.ebuild,v 1.20 2010/11/13 16:05:05 armin76 Exp $

inherit multilib

DESCRIPTION="Larry Wall's Practical Extraction and Report Language"
SRC_URI=""
HOMEPAGE="http://www.gentoo.org/"

LICENSE="|| ( Artistic GPL-1 GPL-2 GPL-3 )"
SLOT="1"
KEYWORDS="alpha amd64 arm hppa ia64 m68k ~mips ppc ppc64 s390 sh sparc x86 ~x86-fbsd"
IUSE=""

PDEPEND=">=dev-lang/perl-5.10.1"

pkg_postinst() {
        if [[ $(readlink "${ROOT}/usr/$(get_libdir )/libperl$(get_libname)" ) == libperl$(get_libname).1 ]] ; then
                einfo "Removing stale symbolic link: ${ROOT}usr/$(get_libdir)/libperl$(get_libname)"
                rm "${ROOT}"/usr/$(get_libdir )/libperl$(get_libname)
        fi
}

crusader linux # ls -1 /usr/portage/virtual/ | grep pcre
crusader linux # ls -1 /usr/portage/virtual/ | grep perl | grep -v 'perl\-'
crusader linux # 

crusader linux # find /usr/lib* -name 'libperl*'
/usr/lib/perl5/5.12.4/i686-linux-thread-multi/CORE/libperl.so.5.12.4
/usr/lib/perl5/5.12.4/i686-linux-thread-multi/CORE/libperl.so.5.12
/usr/lib/perl5/5.12.4/i686-linux-thread-multi/CORE/libperl.so
/usr/lib/libperl.so.5.12.4
/usr/lib/libperl.so.5.12
/usr/lib/libperl.so
crusader linux # ls -l /usr/lib/libperl.so
lrwxrwxrwx 1 root root 17 Dec 29  2011 /usr/lib/libperl.so -> libperl.so.5.12.4
crusader linux # ls -l /usr/lib/libperl.so.5.12
lrwxrwxrwx 1 root root 17 Dec 29  2011 /usr/lib/libperl.so.5.12 -> libperl.so.5.12.4
crusader linux # ls -l /usr/lib/libperl.so.5.12.4
-rwxr-xr-x 1 root root 1412012 Dec 19  2011 /usr/lib/libperl.so.5.12.4
crusader linux # file /usr/lib/libperl.so.5.12.4
/usr/lib/libperl.so.5.12.4: ELF 32-bit LSB shared object, Intel 80386, version 1 (SYSV), dynamically linked, stripped
crusader linux # equery b /usr/lib/libperl.so.5.12.4
 * Searching for /usr/lib/libperl.so.5.12.4 ... 
dev-lang/perl-5.12.4-r1 (/usr/lib/libperl.so.5.12.4)
crusader linux #